Heater.



H. J. LANGE.

HEATER.

APPLIoA'noN FILED 11211.12, 1910.

1,004,042. Patented sept. 26, 1911. I, eo R a slums-sum1- 1. i t \y\\l l@ er) I I" Q@ 02 t@ Q0 e Slitoonet H. J. LANGE.

HEATER.

APPLICATION FILED 1123.12, 1910.

1 ,004,042. Patented Sept. 26, 1911.

8 SHEETS-SHEET 2.

H. J. LANGE.

HBATBB.

APPLICATION FILED APBJQ, 1910.

Patented sep1.126,1911. l

3 BEEETB-BHEBT 3.

Heavy cILarrye, @mW/m,

wwm U 45 i l elevation of a heater, constructed in accord- UNITED STATES PATENT OFFICE. i i' HENRY J'. LANGE, 0F LORAIN, OHIO.

HEATER.

Specication of Letters Patent.

Patented Sept. 26, '1911.

Application filed April 12, 1910. Serial No. 555,048.

To all whom it may concern:

Be it known that I, HENRY J. LANGE, a citizen of the United States, residing at Lorain, in the county of Lorain and State of Ohio, have invented a new and useful Heater, of which the following is a specification.

The invention relates to improvements in heaters for hot water systems.

The object of the present invention is to improve the construction of heaters for hot water systems, and to provide a simple, eiiicient and comparatively inexpensive one adapted to use various kinds of fuel and capable of being constructed almost wholly of cast iron and in which the joints between the sections will not be exposed to the fire.

A further object of the invention is to provide a heater of this character, equipped with a hollow grate and in which water in passing from the hollow grate to the manifold or distributing drum, will circulate through both water tubes and a water jacket, whereby two distinct circulatory systemsare provided and a maximum heating I of the water obtained.

Another object of the invention is to provide a heater provided with water tubes presenting upper inclined faces, adapted to shed dust in order to maintain themselves automatically in a comparatively clean condition.

With these and other objects in view, the invention consists in the construction and novel combination of parts, hereinafter i fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction,

within the scope of the claims, may be re- 4 tition.

. elevation, the

sorted to without departing from the spirit or sacrificing any of the advantages of the invention.

In the drawingsz-Figure l is a front ance with this invention. Fig. 2 is a rear manifold or distributing drum being in section. Fig. 3 is a central vertical sectional view, taken longitudinally of the water tubes. Fig. 4 is a central vertical sectional view, taken transversely of the water tubes. Fig. 5 is a plan view of the grate section, one corner thereof being broken away to show the horizontal par- Fig. 6 is a rear elevation of the bosses 12.

drawings In the embodiment of the invention illustrated in the accompanying drawings, the heater is provided with a casing comprising in its construction a base section l, a grate section 2, hollow front and rear walls 3 and 4, hollow side walls 5 and a hollow top or dome 6. These are all constructed of cast iron and their interior spaces are connected and communicate with one another hy means of pressed nipple joints, as hereinafter fully described. The base 1, which is substantially rectangular, forms an ash pit and is provided at the front with a suitable door 7 for the removal of the ashes. The grate section 2 is also approximately rectangular, as clearly shown in Fig. 5, and it is composed of a hollow marginal frame, and hollow grate sections 8, extending across the frame from front to rear. The

. walls of the base are provided with integral interiorly arranged lugs 9, forming supports for the grate section, which is seated upon and fitted within the base of the heater.

The hollow grate bars are composed of oppositely inclined front and rear portions, as clearly shown in Fig. 3 of the drawings, and each is connected at its front end with the front portion of the hollow frame of the grate section, and at its rear end with the rear portion of the said frame, so that the water passing through the grate bars flows forwardly into each of the same. The water is conducted to the hollow grate section by return pipes 10, having their lower ends piercing the rear wall of the base section and fitted in openings 1l of the tubular The hollow bosses l2 communicate with a rear transverse passage 13, located within the lower portion of the frame of the grate section and extending from one side portion of the said frame to the other. The transverse space or passage 13 is closed at the top to cause the water from the return pipes to flow through the grate bars, which communicate with the passage 13 and with a similar front transverse passage or space 14. The terminals of the rear transverse space lower openings for the reception of the coupling pipes. In order to equip the heater with a comparatively large number of Water tubes, the tubes of each horizontal row are arranged opposite the intervals of the tubes of the adjacent horizontal rows. The heads of the lower tubes of the vertical series are connected by bottom coupling pipes 55 with the hollow extension 20 of the grate section. The heads of the upper tubes of the vertical series are connected with the manifold or distributing drum 46 by upper lower ends 58 and 59, and correspondin coupling pipes 56, and the heads of the water tubes are connected with each other by intermediate pipes 57. The ends of the lower and intermediate coupling pipes 55 and 57 are tapered and the openings for their reception are correspondingly tapered, the parts being` detachably fitted together similar to a pressed nipple joint. The upper coupling pipes 56 have threaded upper and threaded openings are formed in the botttdi of the manifold or distributing drum 46 and in the tops of the heads of the upper water tubes of the vertical series. The upper ends of the top coupling pipes 56 are also equipped with lock nuts 60, which engage the manifold or distributing drum 46 at the bottom thereof, the said manifold or distributing drum being preferably provided at the bottom openings with bosses or enlargements to be engaged by the said nuts 60. The tapered ends of the coupling pipes are maintained firmly in engagement with their respective openings by means of vertical rods 61, provided at their upper ends with suitable collars or bands 62 to lit on the manifold or distributing drum and having their lower ends adjustably connected with the grate section. The collars o1' bands 62 embrace the manifold or distributing drum at the ends thereof, and the lower terminals 63 of the rods 61 are threaded for the reception of nuts 64 by means of which the coupling pipes are maintained sufficiently tight to form water tight joints.V The grate section is provided at the ends of the extension 20 with horizontal ears or flanges 64, which are pierced by the lower ends of the rod 61. The coupling pipes, which are arranged in vertical lines or series, support the manifold or distributing drum, and any one of the water tubes of the vertical series may be removed by disconnecting the top coupling pipe, which may be screwed upwardly into the manifold or distributing drum a sutlicient distance to enable the other water tubes and coupling pipes of such vertical lines or series to be disengaged from one another.

end wall or partition 52 to provide an opening 66. The horizontally disposed longitudinal partition 65 divides the space Within each water tube into upper and lower passages 67 and 68, and the water in circulating through the tubes passes forwardly through the lower passage 68, around the end of the partition 65 and then rearwardly through the upper passage 67. The water from both the water jacket and the water tubes flows into the manifold or distributing drum from whence it passes to the radiators of the heating system, preferably through openings in the ends of the manifold or distributing drum, which, however', may be tapped at any point for this purpose.

The front and rear walls are connected near their upper edges by a centrally arranged tie rod 69, provided with a head at one end and equipped at the other end with a nut, as clearly illustrated in Fig. 3 of the drawings. The rear wall of the base section is provided with an inwardly eX- tending horizontal flange 70, which forms a seat for the grate section. The front wall of the base section is provided with an outwardly extending horizontal flange 71, and the hollow front wall is provided with outwardly extending top and side flanges 72 `and 73. These flanges, which form projecting edges around a door opening 74, lit within a rectangular door frame 75, secured to the exterior of the hollow front wall and the base section, as clearly shown in Fig. l of the drawings. A suitable door 76 is hinged to the frame 75. Fuel of any desired character may be introduced through the door opening 74 into the fire box formed by the grate section. If desired a burner or burners for gas or liquid hydrocarbon may be arranged within the heater.

The hollow front wall is provided with horizontal oblong openings 77, flanged exteriorly and normally closed by suitable doors 78. The doors 78, which are substantially oblong, are hung between the lugs 79 by projecting end portions 80, preferably provided with knife edges and arranged to cause the doors to lit tightly against the flanges of the openings 77 by gravity. The doors 78 are lifted off the lugs when it is desired to remove any accumulation from the water tubes.

The hollow top or dome is provided with a central flanged opening 81, adapted to receive a smoke pipe 82 for the escape of the products of combustion. The short pipe 45, which connects the jacket with the manifold or distributing drum, is located in rear of the smoke pipe and is approximately L- shaped, as shown.

In order to increase the heating capacity of the heater', it is equipped with hollow preferably formed integral with the hollow front and rear walls of the heater and communicating with the spaces within the said walls. The hollow battle plates are located above each of. the horizontal rows of the water tubes, and their inner portions are arranged in overlapping relation for causing the products of combustion to take a circuitous course in passing from the combustion chamber to the smoke pipe 82. The horizontal baille plates extend entirely across the heater from one side wall to the other, and they alternately project from the hollow front and rear walls, and are of a length to extend approximately about three quarters of the distance between the said front and or shells of the front and rear walls and extending from the outer ends of the baille plates to within a short distance of the inner ends of the same for causing the water in traveling upward through the hollow front and rear walls to pass beneath the partition 85 and upward around the inner ends thereof and over the said partitions to the outer ends of the baille plates. It will thus be seen that the baille plates not only interrupt the products of combustion, but are highly heated by the said products impinging against them, and the water within the hollow baffle plates is distributed over a comparatively large surface, and the heating surface of the heater is greatly increased and the products of combustion are caused to act with greater eifect on the rows of water tubes and the capacity of the heater is greatly increased.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

l. The combination of a hollow grate section, hollow front and rear walls supported upon the grate section and communicating therewith at their lower ends, hollow side walls arranged between and secured to the front and rear walls and forming a rectangular casing, said side walls being also supported upon the grate section and communicating therewith at their lower ends, and a hollow top or dome supported upon the side walls between the front and rear walls and communicating at the bottom with the side walls and at the top with the front and rear walls.

2. A heater of the class described including a hollow grate section, hollow side, front and rear walls communicating with the grate section, a hollow top connected to cooperating therewith to form a complete water jacket, a manifold or distributing drum arranged exteriorly of and above the top and connected to and communicating with the water acket, a plurality of horizontally disposed water tubes arranged within the water jacket and having one end projecting beyond one of the walls, and means for connecting the projecting ends of the water tubes with the grate section and also with the manifold or distributing drum, whereby two distinct circulatory systems are present in the heater.

3. A heater of the class described having hollow walls constituting a water acket for the heater and including a hollow grate section connected to and communicating with the water jacket at the bottom, a manifold or distributing drum arranged at the top of the heater and connected to and communicating with the top of the water jacket, a plurality of water tubes communicating with the hollow grate section and with the manifold or distributing drum, and a return pipe connected with the hollow grate section.

4. A heater of the class described including a base, a hollow grate section supported by the base and provided with hollow bosses located within the said base, hollow side walls mounted upon the grate section, hollow front and rear walls, a hollow top or dome arranged upon the side walls and communicating with the same and with the front and rear walls, a manifold or distributing drum connected with the top or dome, a plurality of tubes communicating with the manifold4 or distributing drum and with the hollow grate section, and return pipes piercing the base and connected with the hollow bosses of the grate section.

5. A heater of the class described including a casing, horizontal water tubes extending into the casing and having exteriorly arranged heads, a manifold or distributing drum located above the water tubes, coupling pipes connecting the heads of the tubes and communicating with the same, and other coupling pipes connecting the manifold or distributing drum with the heads of the adjacent water tubes and provided with adjusting means for maintaining all of thecoupling pipes in locked relation.

6. A heater of the class described including a casing provided with openings, a manifold or distributing drum, horizontal water tubes extending through the openings of the casing and provided with means arranged interiorly of the casing for engaging the salne to hold the tubes against outward movement, and exterior vertical coupling pipes connecting the outer ends of the tubes with each other and with the manifold or distributing drum and maintaining the tubes in engagement with the casing.

7. A heater of the class Vdescribed including a casing provided with openings, a manifold or distributing drum located at the top of the casing, horizontal water tubes extending through the openings and provided at the bottom with shoulders arranged interiorly of the casing for engaging the same to hold the tubes. against outward movement, and vertical coupling pipes connecting the tubes with one another and with the manifold or distributing drum and maintaining the shoulders in engagement with the casing.

8. A heater of the class described including a casing provided at one of its walls with an opening and having an interior lug or projection located at the inner side of the opposite wall, and a water tube extending through the said opening and provided at its inner end with a socket receiving the lug or projection, which forms a support for the tube, said tube being provided at its outer portion with a shoulder located at the bottom of the device and arranged interiorly of the casing and detachably engaging the inner side of the same to hold the tube against out-ward movement.

9. A heater of the class described including a casing provided at one of its walls with openings and having interior lugs or projections located at the inner side of the opposite wall, water tubes extending through the openings and provided at their inner ends with sockets receiving the lugs or projections, which support the tubes, said tubes being provided at their outer portions with shoulders arranged interiorlv of the casing and engaging the inner side of the j same to hold the tubes against outward movement, and exterior vertical tubes connecting the outer ends of the water tubes and holding the shoulders thereof in engagement with the casing.

10. A heater of the class described including a casing provided in one of its walls with openings and having triangular lugs projecting from the inner face of its opposite wall, and a plurality of water tubes extending through the openings, said water tubes being triangular in cross section and having sockets at their inner ends conforming to the configuration of and receiving the said lugs, and means for connecting the tubes and for holding the same against outward movement.

11. A heater of the class described including water tubes arranged in approximately horizontal rows and extending from the front to the back of the heater, and hollow baffle plates extending entirely across the heater.and projecting alternately from t-he front and rear walls of the same and having their inner portions arranged in overlapping relation, said baille plates being provided with interior partitions extending entirely across the baiiie plates from the outer ends thereof and terminating short of the inner ends of the same to form upper and lower water passages.

1Q. The combination of a hollow grate section, hollow front and rear walls supported upon the grate section and communicating with the same at the bottom, side walls also supported upon the grate section, hollow batlles extending entirely across the space between the side walls and having no direct connection therewith, said battles projecting alternately from the front and rear walls and arranged in overlapping relation to provide a circuitous passage for the products of combustion, said baffles leading from` the inner shells of the said front and rear walls and communicating at their outer ends with the space defined by the inner and outer shells of the front and rear walls, the inner ends of the baflles being closed and each baffle being provided with a horizontally disposed partition leading from the outer shell of the front and rear walls and extending into the baffles close to the inner closed end thereof, substantially as described.

13. A heater of the class described including a hollow grate section, hollow front, rear and side walls supported by the grate section, a hollow top or dome, all of said hollow parts communicating and forming a complete water jacket around the heater, hollow baffles extending alternately from the front and rear walls and arranged in overlapping relation to provide a circuitous passage for the products of combustion, some of the baffles communicating with the hollow rear wall and others with the hollow front wall, water tubes extending through openings in one of the walls of the heater into the space between the baffles and having heads at their outer ends, a manifold or distributing drum located above the water tubes, and coupling pipes connecting the water tubes with one another and with the manifold or distributing drum.

lll. A heater of the class described including a grate section, hollow front, rear and 'side walls supported by the grate section, a hollow top or dome, all of the said hollow parts communicating and forming a cornplete water jacket around the heater, hollow battles extending entirely across the space between the side walls and having no direct connection therewith, said battles projecting alternately from the front and rear walls and arranged in overlapping relation to provide a circuitous passage for the products of combustion, saidl baiiies leading from the inner shell of the hollow front and rear walls and communicating at their outer ends with the spaces defined by the inner and outer shells of the said front and rear walls, the inner lends of the battles being closed and each baffle being provided with a horizon- In testimony, that I Claim the foregoing tally disposed partition leading from the as my own, I have hereto aiiixed my signa# outer shell of the front and rear walls and ture in the presence of two witnesses.

extending into the baflies Close to the inner HENRY J. LANGE. closed ends thereof, and means for supply- Witnesses:

ing water to the hollow walls at the bottom W. B. THOMPSON,

thereof. C. E. VAN DEUSEN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G. 

